Smoke-consuming device.



Patented June 27, I899.

E. FALES.

SMOKE CONSUMING DEVICE.

(Application filed Dec. 24, 1898.) 1

2 Sheets-Sheet (No Model.)

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No. 627,726. Patented June 27, I899. E. FALES.

SMOKE OONSUMING DEVICE. (A umxon filed 1m. 24, 1898.). (No Model.) 2 shaets sheet 2.

ATTORNEY.

UNITED STATES.

PATENT GFFICE,

EDWARD FALES, OF WINTHROP, MASSACHUSETTS.

SMIOKE-CONSUMING DEVICE.

s'PEciFicATI'oN forming part of Letters Patent No. 627,726, dated June 27, 1899.

Application filed December 24, 1898. Serial No. 700,260. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD FALEs, a citizen of the United States,residin g atWinthrop, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Smoke-Consuming Devices; and I do hereby declare the following to be'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

I My invention relates to steam-generating furnaces in general, but more especially to devices for consuming the black smoke which arises from the burning coal, particularly bituminous coal; and it consists, essentially, in locating one or more injector-tubes at a plane just below the zone within which the combustion of gases is taking place and means by which steam or air may be supplied to said tube or tubes.

The invention further consists of means by which the tube or tubes may be vertically adjusted to the desired height above the bed of burningfuelto injectasheet orsheets of steam or air thereover; and the invention further consists of the general arrangement and com-- bination of the several mechanisms, as will be hereinafter more specifically described, and particularly pointed out in the claims.

In practice, I havefound that the best results, for consuming the smoke, are obtained by locating the injector or tubes as above described, so that the particles of free carbon rising from the bed of fuel will be compelled to unite with sufficient oxygen toproduce carbon monoxid before passing into the combustion zone and perhaps the atmosphere.

The height at which this desired result has been obtained is above the plane of the fuelbed. I have also found it desirable to inject the steam or air on a line parallel with 7 cut heights to so increase the combustion that walls of thefurnace.

Hence the-principal objects of ing coal, and, second, to provide means for so regulating the position of the injector tube or tubes that steam or air or a combination of both may be injected at or about the exact point where the combustion is most intense. These objects are attained by means of the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of a steamboiler and furhacewith the front removed, showing my improved system of piping applied thereto; Fig. 2, a side elevation of a portion of the same, partly broken away to show the interior arrangement of the supplypipes and injector-pipes; Fig. 3, a vertical transverse section on line'3 3 of Fig.2, and Fig. 4 a perspective view of one of the sys- Referring to the several views, the numeralv 1 indicates the furnace, and 2 the boiler, both of which may be of the ordinary or any approved construction. The front of the furnace is provided with the usual doors 3, which open into the combustion-chamber, and with the doors 4:, which open into the ash-pit.

The numeral 5 indicates a vertically-movable pi pe,which is suitably journaled in brackets 6, secured to the front end of one of the The lower end of this pipe is coupled to a vertical pipe 7 by means of T and elbow connections 8 and 9, respectively, The vertical pipe 7 is situated inside of the furnace and,extending upward through the ash-pit a short distance above the firegrate, has its upper end connected by an elbow 10 to a horizontal injector-tube 11, which has its free end closed by a suitable cap and is provided with a series of small perforations 12 for the escape of steam or air. I The upper end of the pipe 5 is connected to one end of a slightly-inclined pipe 13 by two.elbow-coup-- lings 14 14:, one of which, 14, is a loose connection, and the other end of the pipe 13 is connected toone end of'a short horizontal pipe 15 by a loose coupling 16. The other end of the horizontal pipe 15 is connected to one end of a vertical pipe 17 by a coupling 18, and the other end of the vertical pipe is connected to one end of a horizontal pipe 18', and the other end of said horizontal pipe, by means of a loose coupling 18', may be connected to any suitable source of supply, either of air or steam. In the presentinstance it is connected to the boiler, as steam is the element used to illustrate the carrying out of the principle of my invention. To the lower. arm of the T- coupling 8, by means of an elbow-coupling 19, there is connected a drain-pipe 20, which is provided with a valve 21, by means of which the water of condensation may be drawn off. The horizontal pipe 17 is providedwith a suitable cock 22, which is operated by a rod 23 to turn on and shut off the supply of steam from the boiler. The vertical pipe 7 is looselyconfined in a guide 24, and the steam-injector tube is limited in its normal or lower position by stops 25, and the guide is so constructed that the pipes will have a free vertical movement. Attached to the elbow-coupling 14 is one end'of a chain 26, the other end of which passes over pulleys 27 and is provided with a weight 28, which serves to counterbalance the set of piping. J ournaled in suitable brackets 29, secured to the front end of the other furnace-wall, is a vertically-movable rod 30, the upper end of which is connected to the horizontal arm of a Tooupling 31 by means of an elbow-coupling 32 and a short rod Secured in the lower arm of the T-coupling is one end of a vertical pipe 34, which is situated inside of the furnace and extends downward through the combustion-chamber to a point near the injector-tube 11. The lower end of the vertical pipe 34 is connected to a horizontal in jector-tube 35, which is provided with suitable perforations 36, through which steam (or air) is injected over the bed of fuel. The vertical pipe 34 is suitably supported in a guide 37, and the guide is so constructed that said pipes may have a free vertical move ment. In the upper end of the T-coupling there is secured a short pipe 39, which is connected by an elbow-couplin g 40 to one end of a short horizontal pipe 41, the other end of said pipe 41 being loosely connected to one end of an inclined pipe 42 by an'elbow-coupling 43. The other end of the inclined pipe 42 is connected to one'end of a short horizontal pipe 44 by means of an elbow-couplin g 45, and the other end of the pipe 44 is loosely connected to one end of a vertical pipe 46 by means of an elbow-coupling 47. The other end of the pipe 46 is loosely connected to one end of a horizontal pipe 48 by an elbow-coupling 49, and the other end of said pipe 48 enters the steam-dome of the boiler, from which the supply of steam is received. The horizontal pipe 48 is provided with a suitable cock 50, which is operated by means of a rod 51 to turn on and cutoff the supply of steam. This set ofpiping is properly counterbalanced by the weight 52, the other end of which passes over pulleys 54 and is secured to the horizontalrod 33. By means of the several loose connections between the various sections of pipes I provide a flexible supplyconduit, which readily permits of the vertical adjustment of the injector-pipes.

The operation of my improved device will be readily understood from the description heretofore given, it only being necessary to state that either of the injector-tubes may be raised and lowered by manipulating the movable pipe 5 or the movable rod 30, as the case may be, in the desired direction. When it is desired to combine the jets of steam of the two injector-tubes, a slight downward pull on the movable rod and a slight upward push on the movable pipe will bring'the two injectortnbes together, so that the combined force of the two sheets, whether of steam or air, or both, may be injected at the desired point, or the two in jector-tubes may be employed to inject the steam or air, or both, at different heights above the level of the fuel-bed. The separation of the injector-tubes is accomplished by a reverse movement of the movable rod or pipe. If only one of the injectortubes is to be used, it can be readily adjusted to inject the steam or air at any desired point by properly manipulating its movable pipe or rod, as the case may be. WVhen steam is turned on, the force with which it is ejected from the tubes creates a suction, which tends to draw in air through the draft-openings in the charge-doors, which should be left open or partly open, whereby the combustion is greatly intensified.

It will be noted that by means of the loose connections between some of the pipe-sections the vertical movement of the movable pipe and rod, and thereby the injector-tubes, can be accomplished without danger to any of the parts and that the inclination of the pipesections 13 and 42 facilitate the drainingof the water of condensation.

In practice I have found that the vertical adjustment of the injector-tubes may be practicall y limited between a point on a line parallel with the bottom of the charge-door opening and a point on a line parallel with the top of said opening.

It will be observed that the bridge-wall of the furnace (indicated by the dotted lines) is,

much lower than the usually-constructed wall of that character. This low construction of wall is important, as a freer and more direct draft a little above the plane of the inrushing sheet of steam or air is obtained, which insures the complete covering of the rear portion of the fuel-bed, a matter that is quite important. With the high bridge-wall it has been found in practice that the injected steam or air impinges against the wall, and thereby retards the travel of combustion at that part of the furnace, which is greatly objectionable, and the low bridge-wall is designed'to obviate this objection.

Havin thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a smoke-consuming device, the com- ICC bination with a furnace, of an adjustable inj ector-tube having horizontal discharge-openings, means by which steam or air may be supplied to said tube, and means by which the injector-tube may be vertically adjusted, at any desired point above the fuel-bed, to inject a sheet of steam or air horizontally thereover.

2. In a smoke-consuming device, the combination with a furnace, of two injector-tubes, means connected with each tube, for supplying steam or air thereto, and means whereby each tube may be vertically adjusted toward and from each other, to inject a sheet of steam or air, or both, at approximately the same point or separated to inject at different points.

3. In a smoke-consuming device, the combination with a furnace, of an adjustable inj ector-tube having horizontal discharge-openings, a partly-flexible supply-conduit connected thereto, and means by which said tube may be vertically adjusted to inject steam or air at any desired height horizontally over the fuel-bed.

4. In a smoke-consuming device, the combination with a furnace, of an adjustable inj ector-tube having horizontal discharge-openings, a movable pipe connected to said tube, a flexible supply-conduit connected to said movable pipe, and means by which the injector-tube may be vertically adjusted to inject steam or air at any desired height horizontally above the fuel-bed.

5. The combination with a vertically-adj ustable injector-tube, and a flexible supplyconduit connected thereto, of a verticallymovable rod, a vertical pipe, carrying an injector-tube, connected to said rod, a flexible supply-conduit connectinga source of supply with the vertical pipe, and means for vertically adjusting the movable rod and movable pipe.

6. The combination with a vertically-mow" able pipe, journaled outside of the furnace, a vertical pipe, situated inside of the furnace, connected with the movable pipe, an injectortube, having horizontal discharge-openings able pipe, journaled outside of the furnace, a

vertical pipe, situated inside of the furnace, connected with the movable pipe and provided with a valved drain-tube, an injectortube connected to the inside vertical pipe, of

a flexible supply-conduit connected to said movable pipe, and means for vertically adj usting the vertical pipes and injector-tube.

8. In a device for consuming smoke, the

combination of two supply-conduits, each composed of several sections of piping, connected together by two or more loose couplings, and provided with one or more injector-tubes, and means whereby said injector-tubes may be vertically moved together or separated, so as to inject steam or air, or both, at any desired point or points. 9. In a device for consuming smoke, the combination of two vertically-movable injector-tubes, and suitable supply-pipes connected to each of said injector-tubes, said supply-pipes being connected together by two or more loose connections, to permit of the vertical movement of the injector-tubes, and means, whereby said injector-tubes may be moved together or separated from each other, as and for the purpose specified.

10. In a device for consuming smoke, the combination of independently-adjustable injector-tubes, and two independent flexible supply-conduits, and means for vertically adjusting said injector-tubes toward and from each other, whereby jets of steam or air, or both, may be injected at one or difierent points.

In testimony whereof I aflix my signature in the presence of two witnesses.

EDWARD FALES. 

